You Toss a Coin Twice

question 48

Multiple Choice

You toss a coin twice.Because the outcome of the first toss does not affect the outcome of the second toss,these 2 events are called

• A)mutually exclusive.
• B)independent.
• C)dependent.
• D)random.

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Definitions:

Standard Error

A measure of the variability or dispersion of a sampling distribution, often used as an estimate of the accuracy of a sample mean.

Plus Four Method

A statistical method that adds four to the sample size and regards two successes and two failures in a binomial proportion confidence interval.

P-value

The probability of obtaining a test statistic at least as extreme as the one observed, assuming the null hypothesis is true; used to determine statistical significance.

Hypothesis

A supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.